[Bug 76659] New: Display does not return from DPMS off using ATI drivers

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76659

          Priority: medium
            Bug ID: 76659
          Assignee: xorg-driver-ati at lists.x.org
           Summary: Display does not return from DPMS off using ATI
                    drivers
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: tyler.brock at gmail.com
          Hardware: Other
            Status: NEW
           Version: 7.3 (2007.09)
         Component: Driver/Radeon
           Product: xorg

Created attachment 96427
  --> https://bugs.freedesktop.org/attachment.cgi?id=96427&action=edit
XOrg Log

Description:

I've got a Turks XT and the gnome power management timeout causes my screen to
turn off but it often does not come back (meaning moving the mouse and/or
typing on the keyboard have wake the screen but I see only black). Attempting
to switch to a terminal from out of X by using ctrl-alt-fx does not seem to
enable the display either but I am able to login (without seeing anything) and
reboot the box. The screen is on and wakes from sleep but usually nothing is
displayed. Sometimes there is a flickering line at the top of the screen.

Relevant output from lspci:
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Turks
XT [Radeon HD 6670/7670]

Additional info:
xorg-server 1.15.0-5
xf86-video-ati 1:7.3.0-1

I've attached my Xorg.0.log

Not sure if any extra info would be contained other logs (and not sure where to
find them) but I would be happy to follow up if needed.

Steps to reproduce:
Start Computer
Login to GDM
Leave and let computer idle
Return and try to wake computer
Screen is now permanently black

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